631: Which one of the following vitamins is considered to be a hormone ?

(a) A

(b) B

(c) C

(d) D
632: Which of the following is the most important cause for the decline of Buddhism after Ashoka ?

(a) Non patronage by the kings

(b) Condemnation of animal sacrifices

(c) Growth of licentious practices in Buddhist centres

(d) Allegiance to the middle path
633: Which of the following statements are true about the Indian-born woman astronaut Kalpana Chawla ?

I. She was born in Kamal.
II. She flew on board the shuttle flight STS-87.
III. She was trained at the Kennedy Space Centre.
IV. She did a space-walk to retrieve the Spartan Satellite.

Select the correct answer using the codes given below :

Codes :

(a) I and II
(b) II and III
(c) I, II and III
(d) I, II and IV
634: Which one of the following organisms can serve as a bio-fertilizer for rice crop?

(a) Blue green algae
(b) Rhizobium sp
(c) Mycorrhizal fungi
(d) Azotobacter sp
635: Why did Buddhism start declining in India in the early medieval times ?

1. Buddha was by that time considered as one of the incarnations of Vishnu and thus became a part of Vaishnavism.

2. The invading tribes from Central Asia till the time of last Gupta king adopted Hinduism and persecuted Buddhists.

3. The Kings of Gupta dynasty were strongly opposed to Buddhism.

Which of the statements given above is/are correct ?
(a) 1 only
(b) 1 and 3 only
(c) 2 and 3 only
(d) 1, 2 and 3